Batman wasn't originally supposed to be in the 'Batman v Superman' movie

"Batman V Superman" will be featured at San Diego Comic-Con. EW Next March, we'll finally see "Batman v Superman: Dawn of Justice" when it comes to theaters, but it wasn't always planned to include the Caped Crusader.

According to an EW cover story on the highly-anticipated "Man of Steel" sequel, "Batman v Superman" was originally supposed to be just that, a sequel to 2013's Superman reboot featuring Henry Cavill where Metallo was set to be the main villain.

Batman was nothing more than a passing suggestion from director Zack Snyder to "The Dark Knight" trilogy director Christopher Nolan and screenwriter David S. Goyer during a meeting.

But of course, you can never just bring up Bruce Wayne and Batman when discussing Superman.

"'I remember we were talking about 'What's the next villain'" Snyder says. "'We can't do another alien invasion.' Brainiac was definitely down the road. Metallo, I think, was going to be the main bad guy of this movie." Then out of the blue, in a meeting with screenwriter David S. Goyer and executive producer Christopher Nolan, Snyder made a suggestion. "I said, 'What about at the end of the movie we do a scene where there's a crate full of kryptonite delivered to Wayne Manor.' Everyone was like... 'Okaay.' Once you say it out loud it's a problem because you can't unsay it."

And the rest of history.

We'll finally see the two do battle March 25, 2016 when "Batman v Superman" is released in theaters.